Door-check.



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nook CHECK.

APPLICATION FILED APR. 20, 1918.

3192839523:, Patented Dec'. 24, 1918.

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JOHN W. CRAIG, OF BERNE, INDIANA.

DOOR-CHECK.

i Specification of Letters Patent.

)Patented Dec. 24, 1918.

To all whom t may concern Be it known that I, JOHN W. CRAIG, a citizenof the United States of America, and resident of Berne, in the county ofAdams and State of Indiana, have invented certain new and usefulImprovements in Door- Checks, of which the following is a specification.

This invention relates to builders hard- Ware and particularly to doorchecks.

An object of 'this invention is to provide novel means for arresting adoor prior to its reaching the sill or frame so `as to prevent slammingo-f the door, yet allowing the said door to gradually close without theap,- plication of undue force.

A further object of Ithis invention is to provide a resiliently heldmember coacting with a novel device movable with the door and adapted inits swinging movement to engage or release a projecting memberconstituting one element of -the check whereby the checking member wouldbe reset as the door swings open and made operative as the door swingsto a closed position.

A still further object of this invention is toA provide a check of thecharacter indicated having novel means for increasing or diminish-ingthe resistance of the check, thereby making it applicable to doors ofdifferent weights or for operating under different conditions.

With the foregoing and other objects in view, the invention consists inthe details of construction, and in the arrangement and combination ofparts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to theaccompanying drawings forming part of this specification, wherein likecharacters denote corresponding parts in the several views, and inwhich- Figure 1 illustrates a View in perspective ofthe door check inposition for operation;

Fig. 2 illustrates an underneath plan view of the check; y

Fig. 3 illustrates a sectional view thereof; and

Fig. 4 illustrates a transverse sectional View.

In these drawings 10 denotes a rectangular casing having a guiding coreor partition 11, (to be hereinafter termed a core) therein, the saidcore having a recess 12 extending diagonally of one end and a recess 13eX- tending diagonally of the opposite end and on lthe opposite sidefrom that having the recess 12, 'the said recesses constituting clearLances, as will presently appear.

The core may be constructed in any appropriate way, that is to say, itmay be integral with the case or it may be a separate piece as therequirements of practice may dictate.

A leaf spring 14 is anchored as at 15 to the inner wall of the case andhas its free portion lying in the recess 12 with its extremity 16projecting beyond the end of the core 11.

The space between the core 11 and the sides and ends of the caseconstitute a race way for the check 17 which moves in a circuitous patharound the said core, being engaged by the springs 14 and 18, as willpresently appear. The spring 18 is anchored as at 19 to a sliding member20 and having movement in thev casing, the saidv sliding member carryinga bow spring 21, whose ends 22 and 23 may bear against a follower 24 sothat the tension of the spring may be increased or diminished for thepurpose of increasing or diminishing the action of the spring 18, sincethe said spring 18 affects the action of the check and offers a greateror less resistance to 'the check, according to the adjustment of thefollower. Screws 25 and 26 are threaded in the wall of the casing andbear against the follower so that the said follower may be forced inwardor may be allowed to yield under Ithe pressure of the spring 21.

The spring 18 has its free portion extending through or lying -in therecess 13 and its extremity 27 lies in the way in which the checktravels, the said check, in the present embodiment of *the invention,having-a head 28 lying outside of the casing and connected to the check17 by a neck 29, which neck travels in a slot 30 restricted in width ascompared with the check way of the body.

In forming the slot 30the face plate '31 of the body has an aperture andthe core 11 has a plate v32 attached to it, the said plate being smallerthan the aperture in the face plate and being disposed in such relationto the edge of the aperture of the face plate as to form the slot 30.One end 33 of the plate 32 has a beveled edge and the edge of theopening in the Jface plate facing the edge of the plate 32 iscorrespondingly shaped, so that the slot 30 at one side of the plate 32is longer than the slot at the other edge thereof, Whereas the slot atone en d of the face plate is diagonal With respect to the slot at theopposite end of the said plate 32, so that the check Will traverse thepath of the slot in its operation.

The face plate has recesses 34 and 35 constituting seats for buers 36and 37 respectively, ada'pted to receive the impact of the check as itis moved under the influence of the springs or under the influence ofthe door. The casing has a base 38 by which tastenings, such as 39, maybe employed for attaching -the said casing to a door frame or object,With relation to which the door moves.

A bracket adapted to be attached to a door comprises a base 40 securedto the door, at its upper edge, and the said base has an approximatelyhorizontally disposed ange 41 With a slot 42* therein, the said slothaving flanged edges 43 and 44 for engaging the check head 28, so thatone of said anges is operative to move the check head out- Wardly as thedoor swings open, and the other of said ianges is operative to engagethe said head upon closing of the door, thereby carrying the checkin theoutwardly extending parallel portions of the slot 30 according to thedirection of movement of the door. The check is moved laterally acrossthe ends of the core by the springs 14 and 18 and the spring 18 isrelied upon for arresting or partially arresting the check as it movesin the slot under the influence of the door when closing, the tension ofthe spring being proportional to the Weight of the door or the Work tobe performed during the checking operation.'

From an inspection of the drawing, and from the foregoing description,it Will be seen that When the door opens, the check Will be moved :fromthe position in Which it is shown in Figs. 2 and 3 to the opposite endof the core 11 and that the spring 14 will then force it transverselyacross the end of the core and that upon closing the door, the checkwill be forced down or inwardly along the slot or Way on the oppositeside of the core until it engages the spring 18 Which Will. yieldaccording to the tension and that When the door is closed, the free end27 of the spring will return the check to the position in Which itappears in Figs. 2 and 3, :tor a repetition of the operation.

I claim l. In a door check, a. member having a core therein spaced fromthe inner Walls thereof to form a Way, a spring anchored to the casingand extending across the Way on one side of the core and terminatingbeyond the end of said core, a support for a spring, a spring attachedto said support and extending across the way on the side of the coreopposite that occupied by the rst mentioned spring, said secondmentioned spring extending beyond the end of the core and projectinginto the Way, a check traveling in the Way and adapted to engage thesprings, and means for holdingthe check in operative relation with thesprings While being moved.

2. In a door check, a member having a core therein spaced from the innerWalls thereof to form a Way, a spring anchored to the casing andextending across the Way on' one side of the core and terminating beyondthe end of said core; a support for a spring, a spring attached to saidsupport ,and extending across the Way on-the side of the core oppositethat occupied by the first mentioned spring, said second mentionedspring extending beyond the end of the core and projecting into the Way,a check traveling in the Way and adapted'fto engage the springs, meansfor holding the check in operative relation With the springs While be-Ling moved, and means for tensioning the support of the second mentionedspring.

3.In a door check, a member having a core therein spaced from the innerWalls thereof to form a Way, a spring anchored to the casing andextending across theivay on one side of the core and terminating beyondthe end of said core, a support for a spring, a spring attached to saidsupport andextending across the Way on the side of the core oppositethat occupied by the first mentioned spring, said secondmentioned springextending beyond the end of the core and projecting in the Way, a springcarried by the support of the second mentioned spring, mea-ns forregulating the tension of the spring of the support, a check travelingin the Way and adapted to engage the springs, and means for holding thecheck in operative relation With the springs While being moved. I

4. In a door check, a member having a core therein spaced from the innerwalls thereof to form a Way, a spring anchored to the ,casing andextending across the Way on one side of the core and terminating beyondthe end of said core, a support for a spring, a spring attached to saidsupport Vand extending across the Way on the side of the core oppositethat occupied bv the lirst mentioned spring, said second mentionedspring extending beyond the end of the core and projecting into the Way,a check traveling in the Way and adapted to v engage the springs, meansfor holding the check in operative relation tothe springs while beingmoved, and a bracket for attachment toa door, said bracket having a slot`longitudinally thereof for operating'the check.

5. In a door check, a member having a core therein spaced from the innerwalls thereof to form a way, a spring anchored to the casing andextending across the way on one side of the core and terminating beyondthe end of said core, a support for a spring, aV spring attached to saidsupport and extending across the way on the side of the core oppositethat occupied by the first mentioned spring, said second mentionedspring extending beyond the end of the core and projecting into the way,a check traveling in the way and adapted to engage the springs, meansfor holding the check in operative relation to the springs while beingmoved, means for tensioning the support of the second mentioned spring,and a bracket for attachment to a door, said bracket having a slotlongitudinally thereof for operating the check.

6. In a door check, a casing having a core therein spaced from the sidesand ends to form a way, a check slidable therein, springs forcontrolling the action of the check, a check head carried by the check,a neck interposed between the check and head, a face plate for thecasing having an opening therein, the edge of the opening constituting aguide for the said neck, a plate on the core spaced apart from the edgeof the aperture of the face plate and forming therewith a slot, the edgeof the said plate constituting a guide for the neck of the check, andmeans on a door for engaging a check head.

7. In a door check, a casing having a core `therein spaced from thesides and ends to form a way, a check slidable therein, springs forcontrolling the action of the check, a check head carried by the check,a neck interposed between the check andhead, a face plate for the casinghaving van opening therein, the edge of the opening constituting a guidefor the said neck, a plate on the core spaced apart from the edge of theaperture of the face plate and forming therewith a slot, the edge of thesaid plate constituting a guide for the .neck of the check, means on adoor for engaging the check hea d, and means for controlling the tensionof one of the springs.

8. In a door check, a casing having a core therein spaced from the sidesand ends to form a Way, a check slidahle therein, springs forcontrolling the action of the check, a check head carried by the check,a neck interposed between the check and head, a face plate for thecasing having an opening therein, the edge of the opening constituting aguide for the said neck, a plate on the core spaced apart from the .edgeof the aperture of the face plate and forming therewith a slot, the edgeof the said `plate constituting a guide for the neck of the check, meanson a door for engaging a check head, means for controlling the tensionof one of the springs, and means on the door for operating the check.

9. In a door check, a member havinga core therein spaced from the vinnerwalls thereof to form a Way, a spring anchored to the casing-andextending across the way on oneside of the core and terminating beyondthe end of said core, a support for a spring, a spring attached to saidsupport and extending across the way on the side of the core oppositethat occupied by the first mentioned spring, said second mentionedspring extending beyond the end of the core and projecting into theway,` a check traveling in the Way and adapted to engage the springs,means for holding the check in operative relation with the spring whilebeing moved, and means for controlling the tension of one of thesprings.

10. In a door check, a member having a core therein spaced from theinner Walls thereof to form a Way, a spring anchored to the casing andextending across the way on one side of the core and terminating beyondthe end of said core, a support for a spring, a spring attached to saidsupport and extending across the Way on the side of the core oppositethat occupied by the lirst mentioned spring, said second mentionedspring extending beyond the end of the core and projecting into the way,a check traveling in the Way and adapted to engage the springs, mea-nsfor holding the check in operative relation with the springs While'being moved, means for tensioning the support of the said secondmentioned spring, and means on the door for operating the check.

11. In a door check, a member having a core therein spaced from theinner Walls thereof to form a way, a spring anchored to the casing andextending across the way on one side of the core and terminating beyondthe end of said core, a support for a spring, a spring attached to saidsupport and extending across the way on the side of the core oppositethat occupied by the first mentioned spring, said second mentionedspring extending beyond the end of the core and projecting into the way,a check traveling in the way and adapted to engage the springs, meansfor holding the check in operative relation with the springs while beingmoved, means for controlling the tension of one of the springs, andmeans on the door for operating the check.

12. In a door check, a member having a core therein spaced from theinner walls thereof to form a way, a spring anchored to the casing andextending across the Way on one side of the core and terminating beyondthe end of said core, a support for a Spring, a spring attached to saidsupport and extending across the Way on the side of, the core oppositethat occupied'b)7 the first mentioned spring, said second mentionedspring eX- tending beyond the end of the core and projecting into theWay, a spring carried by the l0 support of the second mentioned spring,

means for regulating the tension of' the spring of the support, a checktraveling in the Way and adapted to engage the springs, means forholding the check in operative relation With the spring While beingmoved and a bracket for attachment to a door, said bracket having a slotlongitudinally thereoil for operating the cheek.

JOHN W. CRAIG.

Copies of this patent may be obtained for. five cents each, byaddressing the Commissioner of Patents, Washington, D. C."

